RCS2012J820CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012J820CS is an 82 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in the 0805 (2012 Metric) package. This component features anti-sulfur and moisture-resistant properties with an operating temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries an unlimited moisture sensitivity level (MSL 1). As an active product with 1042 units in stock, equivalent and substitute parts are identified to support design flexibility, supply chain alternatives, and application-specific requirements such as tighter tolerance specifications or automotive-grade certifications.

Key Parameters

Parameter	Value
Resistance	82 Ohms
Tolerance	±5%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Features	Anti-Sulfur, Moisture Resistant
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RCS2012J820CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 82 Ohms (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Power rating: 0.125W minimum (equal or higher acceptable)
Tolerance: ±5% or tighter (±1% acceptable as superior specification)
Temperature coefficient: ±100ppm/°C (exact match)
Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)
Composition: Thick Film (exact match)
RoHS compliance: ROHS3 Compliant (required)
Moisture Sensitivity Level: 1 (Unlimited) (required)

Secondary Considerations:

Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical substitution
Automotive AEC-Q200 certification is an enhancement, not a requirement
Anti-sulfur feature is an enhancement, not a requirement
Height variation within specified limits does not affect substitution

Substitute parts are grouped into two categories: Direct Equivalents (matching tolerance ±5%) and Superior Tolerance Alternatives (±1% tolerance providing tighter specification control).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	AEC-Q200	RoHS
RCS2012J820CS	Samsung Electro-Mechanics	82Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Anti-Sulfur, Moisture Resistant	No	ROHS3
RC2012F820CS	Samsung Electro-Mechanics	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	No	ROHS3
AC0805FR-0782RL	YAGEO	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Yes	ROHS3
AC0805JR-0782RL	YAGEO	82Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Yes	ROHS3
CRCW080582R0FKEA	Vishay Dale	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Yes	ROHS3
CRCW080582R0FKEAHP	Vishay Dale	82Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Pulse Withstanding	Yes	ROHS3
ERJ-6ENF82R0V	Panasonic Electronic Components	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Yes	ROHS3
ERJ-UP6F82R0V	Panasonic Electronic Components	82Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Anti-Sulfur, Automotive AEC-Q200, Pulse Withstanding	Yes	ROHS3
RC0805FR-0782RL	YAGEO	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	No	ROHS3
RC0805JR-0782RL	YAGEO	82Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	No	ROHS3
RMCF0805FT82R0	Stackpole Electronics Inc	82Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Yes	ROHS3

Engineering Selection Recommendations

Direct Tolerance Match (±5%):

AC0805JR-0782RL and RC0805JR-0782RL provide direct electrical equivalence to the RCS2012J820CS with matching ±5% tolerance and 0.125W power rating. Both parts are ROHS3 compliant with identical operating temperature ranges and temperature coefficients. AC0805JR-0782RL includes automotive AEC-Q200 certification, suitable for applications requiring automotive-grade reliability. RC0805JR-0782RL is available in higher inventory (76,402 units) and provides moisture-resistant thick film construction without automotive certification.

Superior Tolerance Alternatives (±1%):

RC2012F820CS (Samsung Electro-Mechanics) provides tighter tolerance control while maintaining the same manufacturer as the primary part, ensuring consistent material science and processing. CRCW080582R0FKEA (Vishay Dale) offers the highest inventory availability (36,072 units) with automotive AEC-Q200 certification and ±1% tolerance. ERJ-6ENF82R0V (Panasonic Electronic Components) provides the largest inventory (261,446 units) with automotive AEC-Q200 certification and ±1% tolerance, supporting high-volume applications.

Enhanced Power Rating Options:

CRCW080582R0FKEAHP and ERJ-UP6F82R0V both provide 0.5W (1/2W) power rating in the same 0805 package, enabling applications requiring higher power dissipation capability. ERJ-UP6F82R0V includes anti-sulfur features matching the primary part specification. Both parts carry automotive AEC-Q200 certification and ±1% tolerance.

Selection Criteria:

For direct replacement without specification changes: AC0805JR-0782RL or RC0805JR-0782RL
For tighter tolerance control: RC2012F820CS, CRCW080582R0FKEA, ERJ-6ENF82R0V, or RMCF0805FT82R0
For automotive applications: AC0805FR-0782RL, AC0805JR-0782RL, CRCW080582R0FKEA, ERJ-6ENF82R0V, or RMCF0805FT82R0
For high-volume availability: ERJ-6ENF82R0V (261,446 units)
For enhanced power handling: CRCW080582R0FKEAHP or ERJ-UP6F82R0V

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS2012J820CS with a ±1% tolerance part?

A: Yes. Parts with ±1% tolerance (RC2012F820CS, CRCW080582R0FKEA, ERJ-6ENF82R0V, RC0805FR-0782RL, RMCF0805FT82R0) provide tighter tolerance control and are electrically compatible. The ±1% specification is superior to the original ±5% requirement and does not create compatibility issues.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) and Cut Tape (CT) packaging formats differ only in delivery method and handling. Both contain identical components with the same electrical and mechanical specifications. Selection between formats depends on assembly equipment compatibility and inventory management practices, not electrical performance.

Q: Are automotive AEC-Q200 certified parts suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates enhanced reliability testing and quality assurance. Parts meeting this standard are fully compatible with non-automotive applications and provide equivalent or superior performance compared to non-certified alternatives.

Q: Can I use a 0.5W (1/2W) rated resistor in place of a 0.125W (1/8W) rated resistor?

A: Yes. A higher power rating provides greater thermal margin and is electrically compatible. CRCW080582R0FKEAHP and ERJ-UP6F82R0V both provide 0.5W rating in the same 0805 package and are direct substitutes. The circuit will operate identically with improved thermal performance.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts listed carry MSL 1 rating, ensuring identical moisture handling requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant, matching the environmental compliance requirement of the primary part RCS2012J820CS.

Q: Which substitute part has the largest inventory availability?

A: ERJ-6ENF82R0V (Panasonic Electronic Components) has the largest inventory with 261,446 units in stock, providing maximum supply chain security for high-volume production requirements.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All substitute parts meet identical electrical specifications (82 Ohms, ±5% or ±1% tolerance, 0.125W or higher, 0805 package, -55°C to 155°C operating range, ±100ppm/°C temperature coefficient). Mixing manufacturers is electrically and mechanically compatible.

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